The boat I am considering buying has a saltwater-run 1989 3cyl Merc 90 hp. I've done a bit of research here and I gather that this engine doesn't like to idle smoothly but it runs well at full throttle.<br /><br />What other general impressions do posters have of this engine? Any notorious gremlins I should be looking for?<br /><br />What should I be looking for when I go look at it? (only seen photos so far). I know enough to do compression test and check leg oil for water, after that I'm about done. I owned 1980 Merc 80 hp before so have a little familiarity with the breed.<br /><br />What was factory compression spec, and how much variation between cylinders is permissable?<br /><br />Any help appreciated, send me your carpentry questions so I can reciprocate.<br /><br />Wally
